"How a Realist Hero Rebuilt the Kingdom" in my opinion really needs an anime. Even if it only covered the first 3-4 volumes worth I think it would be a really good anime.

What would be great: 24 episodes, 4 volumes + all of the bonus stories from 1-4. That way we get our tanuki princess, the first of the Poncho stories, and no need to cut out the adventurer party stories with little whatshisname.

That would be great and since a lot of the series are now starting to get a 24 episode run it might actually be possible. The only thing is that we will most likely have to wait for the manga to reach a point that the anime will not overtake it. Maybe that won't be the case but from my experience that is generally how it goes. We'll just have to wait and see.

Getting a bit outside the subject, but I think the web novel Solo Leveling (AKA "Only I level up") would make a great anime. The only problem is it would need to be quite high budget to work, because the manhwa is full colour and has amazing artwork. Also, the Korean animation industry tends to focus more on doing outsource work for Japanese anime and American cartoons, and what little Korean aeni there is tends to be films rather than series.

I need a maximum comfiness Tondemo Skill de Isekai Hourou Meshi anime. (ENG - Campfire Cooking). It has incredible sales even if there is no anime. The manga sells around 105k copies per volume. The spin-off slime manga's first volume sold about 52k copies. The latest LN volume sold 30k copies.